Anti-SRY box 30 antibodies enable researchers to detect and measure the SRY box 30 antigen in biological samples. This target is a reported synonym of the SOX30 gene, which encodes SRY-box transcription factor 30. This protein is known to function in the regulation of transcription and spermatid development, among other biological roles. The human version of SRY box 30 has a canonical amino acid length of 753 residues and a protein mass of 81.9 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and notably expressed in the testis.